I currently have the MP +1 qt plain steel pan w/ a billet filter extension and need to pull the pan & valve body. This would be a good time to upgrade the pan, if I'm going to do it.

What's the best buy / value in a cast aluminum 727 pan? I don't necessarily mean cheapest, since quality of the casting, hardware, etc., factor into this, too. Example: Which ones come w/ a nice matching filter extension, vs. something like the cheesy stamped-steel part I replaced w/ my MP pan?

Is there much benefit by stepping all the way up to a +4 qt model, or is the generic +2 qt sufficient? I always run synthetic ATF and have an external cooler, too.

Thanks - Brad